Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Net Income	$ 1,371	$ 1,172	$ 1,118
Net Income	1,368	1,169	1,120
Other comprehensive income (loss), net of tax:
Benefit obligations, net of taxes of $3, $2, and $2, respectively	8	8	8
Net unrealized gains (losses) on derivatives, net of taxes of $1, $(4), and $—, respectively	2	(12)
Net unrealized gains (losses) on derivatives, net of taxes of $1, $(4), and $—, respectively			(1)
Foreign currency translation	1	1	(2)
Other comprehensive income (loss)	11	(3)	5
Comprehensive income	1,382	1,169	1,123
Less: Comprehensive income (loss) attributable to noncontrolling interests	3	3	(2)
Comprehensive Income Attributable to DTE Energy Company/DTE Electric Company	1,379	1,166	1,125
DTE Electric
Net Income	778	716	664
Other comprehensive income (loss), net of tax:
Other comprehensive income (loss)	0	0	0
Comprehensive Income Attributable to DTE Energy Company/DTE Electric Company	$ 778	$ 716	$ 664